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- Full lot COA — PSD, sphericity, flow rate, chemistry
- Qualified parameter sets for the major LPBF systems
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Materials, Engineering, Jigs&Fixtures, LPBF (DMLS) 3D Printing Materials, Manufacturing, Metal Powders 3D Printing Materials, Nickel Base · Metal LPBF
18Ni300 Powder Nickel Alloy for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
Maraging tool steel. Easy to harden. AM-proven. Genuine AVIMETAL 18Ni300 (1.2709) for LPBF metal 3D printing.
- ✓ Exceptional strength & hardness after simple aging
- ✓ Strong value alternative, sold in small workable volumes
- ✓ Full COA on every lot · fast dispatch from L.A.
NDA standard
Ships in 1–2 business days
Spec-match guarantee on every lot
Built for production teams
What your process engineer actually checks
Locked, traceable lot chemistry
Every lot ships with a COA documenting PSD, sphericity, flow rate, apparent density, and full chemistry — and a lot number you can trace. Aerospace and medical teams reorder 4+ times without re-qualifying.
Qualified parameters, not just powder
Validated parameter sets for EOS M 290, Renishaw 500Q, SLM 280, and our own AO Metal LPBF ship with the order. Load the profile and hit density on the first build — no parameter-development burn.
A materials engineer on the line
Questions on ferrite content, flowability, recyclate ratios, or HIP response? A materials engineer answers directly — not a contact-form bot. Most replies in under 4 hours, NDA standard.
About this product
AVIMETAL 18Ni300 is a maraging tool steel (1.2709) for laser powder bed fusion (LPBF) — an age-hardenable martensitic steel with exceptional tensile strength and hardness, reached after a simple low-temperature aging step.
Produced by AVIMETAL, a leading specialist manufacturer of additive-manufacturing metal powders with in-house liquid-metal atomization. With tight control of residuals, it offers proven AM processability and low distortion — ideal for tooling and high-strength functional parts.
Why teams buy this powder from Additive Plus
- Genuine AVIMETAL 18Ni300 — gas-atomized for high sphericity, low oxygen and consistent flow.
- A strong value alternative to premium Western maraging powders, at an accessible, published price.
- Available in small, workable volumes — no large mill minimums.
- Full COA with every lot — PSD, chemistry, apparent density and flow rate, with a traceable lot number.
- Fast dispatch from Los Angeles. Custom alloys / cuts via our own in-house atomization.
Standards & equivalents
- Made to the maraging steel specification: 18Ni-300 · 1.2709 · X3NiCoMoTi-18-9-5 · ASTM A646
- Machine type: F — LPBF · Particle size: 15–45 µm (custom cuts available) · Bottle: 10 kg / 22 lbs
- Quality: gas-atomized on dedicated AVIMETAL lines for high sphericity and low oxygen; full COA per lot.
Chemical composition
Typical chemistry (wt%) for 18Ni-300 maraging steel:
| Element | Content | Element | Content |
|---|---|---|---|
| Iron (Fe) | Balance | Chromium (Cr) | ≤ 0.25% |
| Nickel (Ni) | 17.0–19.0% | Manganese (Mn) | ≤ 0.15% |
| Cobalt (Co) | 8.50–10.0% | Silicon (Si) | ≤ 0.10% |
| Molybdenum (Mo) | 4.50–5.20% | Carbon (C) | ≤ 0.030% |
| Titanium (Ti) | 0.80–1.20% | P / S | ≤ 0.010% each |
Heat treatment & processing
- Age-hardenable — a simple, single low-temperature aging step develops high strength and hardness (no complex quench).
- Excellent AM processability with low distortion, unlike high-carbon tool steels.
- Readily machined in the solution-annealed condition, then aged to final hardness.
Key performance benefits
- Exceptional tensile strength and hardness
- High hardness and wear resistance
- Low-distortion processability in LPBF
- Simple, predictable heat treatment
Typical applications
- Tool inserts for molding and casting
- Conformal-cooling tooling
- High-strength functional components
- Jigs and fixtures
Material comparison: 18Ni300 vs H13 vs 17-4PH
| Feature | 18Ni300 (maraging) | H13 (hot-work) | 17-4PH |
|---|---|---|---|
| Type | Maraging tool steel | Hot-work tool steel | PH stainless |
| Hardness | Very high (aged) | High | High |
| AM processability | Excellent (low distortion) | Challenging (crack-prone) | Excellent |
| Heat treatment | Simple aging | Air-harden + temper | Single-step aging |
| Corrosion resistance | Low | Low | Good |
| Typical use | Molds, inserts, tooling | Die casting, extrusion | Structural parts, tooling |
| Brand | Avimetal |
| Technology | Metal LPBF |
| Powder Package | 10 kg bottle, 440 kg hopper, 840 kg hopper |
| PSD (particle size distribution) | 15–53 micrometres |
| Printing Materials | Metal Powders |
| Material | 18Ni300 |
| Country of origin | China |
| Production Method | Vacuum Induction Melting Gas Atomization (VIGA) |
Don't see your spec?
We atomize our own. Custom variants on request.
Tighter PSD, modified chemistry, custom blend? Our ATO atomization lab runs custom batches in 3–4 weeks. Biocompatible, refractory, proprietary — all in-house, verified before ship.
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Complete the workflow
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Need a build platform for a different printer model or custom dimensions?
Request a custom quote — we manufacture precision build plates for most metal AM systems.
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17-4PH Stainless Steel Alloy Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
High strength. Heat-treatable. Production-ready. Genuine AVIMETAL 17-4PH precipitation-hardening stainless steel for LPBF metal 3D printing.
- ✓ Gas-atomized, low-oxygen — full COA on every lot
- ✓ Strong value alternative, sold in small workable volumes
- ✓ Fast dispatch from Los Angeles
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- ✓ Gas-atomized — full COA on every lot
- ✓ Strong value alternative, sold in small workable volumes
- ✓ Fast dispatch from Los Angeles
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From process engineers running 18Ni300 Powder Nickel Alloy for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
Unedited feedback from customers who reorder 18Ni300 Powder Nickel Alloy for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs.
★★★★★
Same lot 4 times in a row. We stopped re-running parameter sweeps after the second order — density was identical to the first build.
MK
Marcus K.
Process Engineer · Aerospace OEM
★★★★★
Asked about ferrite content on a Friday. A materials engineer answered Monday morning with actual data, not a sales pitch. That's why we keep ordering.
PS
Priya S.
R&D Lead · Medical Devices
★★★★★
COA matches the bottle. PSD and flow are exactly what was on the sheet — we run it on a Renishaw 500Q and it hits density on the first try.
DR
Diego R.
Production Lead · Energy
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What additive manufacturing process is Avimetal 18Ni300 designed for?
Avimetal 18Ni300 is specifically optimized for Laser Powder Bed Fusion (LPBF / SLM), with controlled particle size, flow characteristics, and chemistry to support stable processing and repeatable results
Is Avimetal 18Ni300 Powder suitable for production and serial manufacturing?
Yes. The powder is production-ready and designed for repeatable builds, batch-to-batch consistency, and qualification workflows required in aerospace, defense, and industrial production.
What heat treatment routes are supported?
Standard solution treatment and aging cycles are supported to achieve ultra-high strength and hardness. Heat treatment parameters can be tailored depending on target mechanical properties and application requirements.
Are the mechanical properties listed achieved in the as-built condition?
No. The listed mechanical properties are achieved after appropriate heat treatment, which is essential for unlocking the full performance of 18Ni300.
How does oxygen content affect LPBF performance?
Low oxygen content (≤450 ppm) improves powder flowability, reduces oxidation-related defects, and contributes to consistent melt pool behavior and mechanical properties.
Can this powder be reused in LPBF processes?
Yes. When handled and monitored according to standard powder management practices, Avi Metal 18Ni300 supports controlled powder reuse. Requalification protocols are recommended for critical applications.
What post-processing methods are compatible?
Machining, heat treatment, polishing, surface finishing, and inspection processes commonly used for aerospace-grade components are fully compatible.
Place your order, or talk to an engineer first
Order 18Ni300 Powder Nickel Alloy for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs direct, or talk to materials engineer